refusal time

On the time for joint grouting in arch dams;

关于拱坝接缝灌浆时间的探讨

Study on effects of mixing time of wet ground cement on mortar properties;

湿磨细水泥制浆时间对浆材性能的影响研究

Inner Mongolia oil sand was used as raw material,the influence of the amount of slurry reagent,slurry temperature,slurry time,the amount of slurry air,dilution time,and the amount of dilution air on the yield of bitumen was investigated by the single factor method on self-made reactor with self-made slurry reagent.

以内蒙古油砂为原料,采用自制的反应装置和浆化剂,通过单因素方法分别考察浆化剂量、浆化温度、浆化时间、浆化空气量、稀释时间和稀释空气量对分离效果的影响。